So now that you have a basic concept of wiring a 2 way switch lets look at the following 2 way switch diagrams to see which type of circuit scenario you have. In one switch position the com terminal is connected to l1.

B883 2 Gang 2 Way Lighting Circuit Wiring Diagram Wiring
2 way switch diagram uk. Your lighting circuit must have an earth cable terminating in the switch back box and also at the switch plate if it is metal. 2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching. They are wired so that operation of either. We look at the eu colour coding wires. This cable consists of three cores brown grey and black which are all line colours and an earth wire. In the other switch position it changes over so that com is connected.
A two way switchuk schematic diagram of old wire colours. How to wire 2 way light switch in this video we explain how two way switching works to connect a light fitting which is controlled with two light switches. This should give you a good basic understanding how the 2 way switch circuit works and will help you in adding or changing a 2 way switch. Do you need to know how a two way switch works before you check out the circuit diagrams. These are typically labelled com l1 and l2 some may label the l1 and l2 positions as 1 way and 2 way. Connect the blue wire with the brown.
A two way light switch is a simple single pole changeover switch with three terminals. Connect the line brown wire coming from the light together with the 3 coreearth cable black wire in to the l1 terminal of the two way switch. Here is our selection of two way switch circuit diagrams. For wiring a two way switch 3 coreearth cable is used. 2 way switch 3 wire system new harmonised cable colours 2 way switching means having two or more switches in different locations to control one lamp. 3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control. Two way switch lighting circuit diagrams. Schematic diagram of new wire colours. For simplicity the earth wire is not shown in the above diagram. Before you start safety first. The electrical symbol indicates where power enters the circuit.
If you need to know how to wire a two way switch then this is the place to start. 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching.